National Sleep Foundation

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Chapter 4: Primary Hypersomnias

Etiology and Risk Factors

As noted, Behaviorally-induced ISS can result from causes such as working long hours and/or engaging in shift work, or restricting sleeping in favor of some other activity, such as watching TV.

Social, cultural, and psychological factors may all contribute to Behaviorally-induced ISS. In children, sleep restriction is often unintentional, and results from parents’ underestimation of the child’s sleep requirements.